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Multi-resolution predictive foveation for bandwidth reduction of moving images

  • US 7,499,594 B2
  • Filed: 10/23/2002
  • Issued: 03/03/2009
  • Est. Priority Date: 04/15/2002
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • compressing using a processor a first scene of an image sequence relating to a first view location based on a first plurality of foveation zones, each of the first plurality of foveation zones being weighted based on a probability of a viewer looking at a corresponding portion of the first scene, each of the first plurality of foveation zones having a corresponding resolution so that at least one object therein is viewer-recognizable; and

    compressing using the processor a second scene of the image sequence relating to a second view location based on a second plurality of foveation zones, each of the second plurality of foveation zones being weighted based on a probability of a viewer looking at a corresponding portion of the second scene, each of the second plurality of foveation zones having a corresponding resolution so that at least one object therein is viewer-recognizable;

    wherein at least a portion of the first scene and the second scene of the image sequence occur in the image sequence at the same time such that at least a portion of the image sequence is compressed based on both the first scene and the second scene; and

    wherein during the portion of the image sequence that is compressed based on both the first scene and the second scene, the image sequence is compressed based on a probability that a viewer is looking at the first view location vs. the second view location.

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